refactor(CLI): Upgrade to v7 of open library

It's to unify open browser method with dashboard plugin, and this method feels more solid

lib/utils/openBrowser.js

@@ -2,7 +2,7 @@
 
 /* eslint-disable no-console */
 
-const opn = require('./open');
+const open = require('open');
 const chalk = require('chalk');
 const isDockerContainer = require('is-docker');
 const { legacy, log, style } = require('@serverless/utils/log');
@@ -17,13 +17,14 @@ module.exports = function openBrowser(url) {
   let browser = process.env.BROWSER;
   if (browser === 'none' || isDockerContainer()) return;
   if (process.platform === 'darwin' && browser === 'open') browser = undefined;
-  const options = { wait: false, app: browser };
-  opn(url, options).catch((err) => {
-    if (process.env.SLS_DEBUG) {
-      legacy.write(
-        `Serverless: ${chalk.red(`Opening of browser window errored with ${err.stack}`)}\n`
-      );
-    }
-    log.info(`Opening of browser window errored with ${err.stack}`);
-  });
+  open(url).then((subprocess) =>
+    subprocess.on('error', (err) => {
+      if (process.env.SLS_DEBUG) {
+        legacy.write(
+          `Serverless: ${chalk.red(`Opening of browser window errored with ${err.stack}`)}\n`
+        );
+      }
+      log.info(`Opening of browser window errored with ${err.stack}`);
+    })
+  );
 };

package.json

@@ -64,6 +64,7 @@
     "ncjsm": "^4.2.0",
     "node-fetch": "^2.6.6",
     "object-hash": "^2.2.0",
+    "open": "^7.4.2",
     "path2": "^0.1.0",
     "process-utils": "^4.0.0",
     "promise-queue": "^2.2.5",